Sealing element for a structural joint

ABSTRACT

A sealing element for a structural joint contains a first carrier layer and a second carrier layer. The two carrier layers, in a cross-sectional view oriented perpendicularly to a longitudinal direction of the sealing element, are substantially the same length. At least one portion of the first carrier layer and at least one portion of the second carrier layer extend toward one another in a V shape. A receiving space, in which a functional material is received, is also formed between the first carrier layer and the second carrier layer.

The invention relates to a sealing element for a structural joint, comprising a first carrier layer and a second carrier layer. In a cross-sectional view oriented perpendicularly to a longitudinal direction of the sealing element, the two carrier layers are substantially the same length. Furthermore, at least one portion of the first carrier layer and at least one portion of the second carrier layer extend toward one another in a V shape.

Here, extending toward one another in a V shape means that at least one portion of the first carrier layer is arranged at an acute angle with respect to at least one portion of the second carrier layer.

Such sealing elements are known from the prior art. The carrier layers extending toward one another in a V shape serve to provide the sealing element with a certain mobility so that it can adapt to any relative movements that may occur at the boundary surfaces of the structural joint. Such relative movements can result from setting processes of the building in which the structural joint is located. Alternatively, the mobility can be used to compensate for variations in the width of the structural joint to be sealed. Such a sealing element can therefore be used in structural joints, the width of which fluctuates within a certain range.

Structural joints must be provided not only for optical reasons, but also for the purpose of fire protection, acoustic insulation and/or sealing with regard to moisture and/or undesired air exchange. These functions are partially achieved by specially designed sealing elements. For example, EP 3 584 381 A1 discloses a sealing element which is made from an intumescent material and thus serves as a fire protection seal. The sealing element from EP 3 584 381 A1 can have differently designed profiles so that it can be used in different types of structural joints.

In order to fulfill several of the functions mentioned, a multi-part seal structure is usually necessary. In this regard, a sealing cord is known from WO 2017/207252 A1, which contains an intumescent material and is used to seal against flue gas, water, and dust.

It is also known to ensure the functions mentioned by introducing substantially shapeless sealing compounds or sealing pastes into the structural joint. However, this is much more complex than introducing a prefabricated sealing element into the structural joint.

Against this background, the object of the present invention is to specify a sealing element by means of which various sealing functions can be provided in a simple manner. In particular, the sealing element should have a simple structure so that it can be produced simply and inexpensively. In addition, it should be possible to install the sealing element in the structural joint with little effort.

The object is achieved by a sealing element of the type mentioned at the outset, in which a receiving space is formed between the first carrier layer and the second carrier layer and a functional material is received in the receiving space. A functional material is understood to mean a material that fulfills a certain function in connection with the sealing of a structural joint. Examples of such functions are fire protection, thermal insulation, and sealing against moisture, foreign particles, and air exchange. Foreign particles are, for example, dust particles. A single functional material that fulfills one or more functions can be received in the receiving space. It is of course also possible to receive a plurality of functional materials in the receiving space, each of which fulfills the same or different functions. Such a sealing element has a simple structure. As a result, it can be produced simply and inexpensively, in particular as continuous material. In addition, different sealing functions can be fulfilled by means of such a sealing element. By receiving in the receiving space functional materials that provide the desired functions, the sealing element can easily be adapted to different applications. In addition, depending on the application, the receiving space can be completely or only partially filled with the functional material. The fact that at least portions of the carrier layers extend toward one another in a V shape means that the sealing element can be reliably applied to the boundary layers of the structural joint. In addition, this shape makes it easier for the sealing element to be pushed into the structural joint, since the portions extending toward one another in a V shape act as insertion bevels. Such a sealing element can also be used for a wide range of joint widths without having to be modified for this purpose.

The first carrier layer and the second carrier layer can comprise a polymer material. They are therefore made in particular from a plastics material, for example polyvinyl chloride. Alternatively, it is possible that the carrier layers comprise a fiber material. Of course, they can also comprise a metal material or a composite material. Likewise, the first carrier layer and the second carrier layer can, in the broadest sense, comprise a paper or cardboard material and/or a cork material. It is also conceivable that the first carrier layer and the second carrier layer comprise a wood material, in particular a bamboo material.

According to one embodiment, the at least one portion of the first carrier layer and the at least one portion of the second carrier layer are connected to one another at the ends thereof which are closer together. In particular, the first carrier layer and the second carrier layer are connected to one another in an elastically flexible manner. In cross section, the sealing element is therefore open only on one side. This makes it particularly easy to introduce a functional material into the receiving space and hold it there. The interconnected carrier layers preferably form a one-piece carrier layer composite. As a result, the sealing element can be produced in a comparatively simple and inexpensive manner. An elastically flexible connection means that the sealing element can be elastically compressed in a width direction of the associated structural joint. This facilitates introduction into the structural joint. In addition, it is ensured with a particularly high level of reliability that the sealing element rests in a sealing manner on the boundary surfaces of the structural joint.

A further portion of the first carrier layer and a further portion of the second carrier layer can extend substantially parallel to one another. Each of the further portions is in particular connected to one of the portions extending toward one another in a V shape, preferably connected in one piece. In this way, a relatively large receiving space can be created. Accordingly, a comparatively large amount of functional material can be received therein. This results in a particularly resistant sealing element and/or a sealing element by means of which a particularly high range of functions can be provided. Furthermore, such a sealing element is designed to penetrate the structural joint over a comparatively great depth and to ensure sealing.

Preferably, the first carrier layer and the second carrier layer as a whole extend toward one another in a V shape. The sealing element therefore has a particularly simple design and can be produced extremely easily. For example, the carrier layers can be produced by means of an extrusion process. In this context, the carrier layers can be flat.

In one variant, a portion of an outer surface of the first carrier layer forms a first contact surface for contact with a boundary surface of the structural joint and/or a portion of an outer surface of the second carrier layer forms a second contact surface for contact with a boundary surface of the structural joint. The first carrier layer and the second carrier layer therefore lie directly, in particular without the interposition of further layers, on the respectively assigned boundary surfaces of the structural joint. As a result, the sealing element is also structurally simple.

Likewise, the first contact surface and/or the second contact surface can be provided with an adhesive coating. Such a coating serves to increase the static friction between the carrier layer and the associated boundary surface of the structural joint. Alternatively or in addition, the adhesive coating serves to achieve improved adhesion of the carrier layer to an associated boundary surface of the structural joint through adhesion. As a result, the sealing element is reliably held in the structural joint.

In a further development, at least one holding element for holding the sealing element in the structural joint is provided on the first contact surface and/or on the second contact surface. The holding element is in particular a holding projection or a holding finger. The sealing element is also reliably held within the structural joint by means of the at least one holding element. For this purpose, the holding element is deformed, for example, so that portions of the holding element hook onto the assigned boundary surface of the structural joint.

In one embodiment, the functional material comprises an intumescent material. Such a material swells under the action of heat, thus increasing its volume. As a result, the sealing element can ensure a particularly reliable fire protection seal. This is especially true with regard to sealing against surfaces that are not ideally flat.

Alternatively or additionally, the functional material comprises a thermal insulation material. This reliably prevents or at least inhibits heat transfer through the structural joint. The thermal insulation material includes, for example, mineral wool.

It is also possible for the functional material to comprise a noise insulation material. The structural joint can thus be insulated acoustically. Such an insulation material can also comprise mineral wool.

The functional material can also comprise a sealing material. A sealing material is used to seal against smoke, air, moisture, foreign particles, and/or water. The structural joint can thus be reliably sealed in this regard.

It goes without saying that the functional materials explained above can be received in the receiving space individually or in combination. It is also possible that a single functional material, for example mineral wool, fulfills several of the functions mentioned.

According to a design variant, the functional material rests against both the first carrier layer and the second carrier layer, the functional material being elastically flexible. The first carrier layer and the second carrier layer can thus be brought closer to one another with elastic deformation of the functional material. As soon as the force applied for this is no longer effective, the carrier layers are moved back into their original position by the functional material being elastically deformed. Overall, the result is a sealing element which, for example, can be compressed in a dimension corresponding to a joint width for insertion into a structural joint. This makes it particularly easy to introduce the sealing element into the structural joint. The sealing element can then elastically re-deform within the structural joint, so that it comes to a reliable sealing contact with the boundary surfaces of the structural joint.

Depending on the shape of the structural joint, the re-deforming of the functional material can also result in the sealing element being drawn into the structural joint.

In this context, the functional material can have a higher elastic flexibility than the carrier layers. In other words, the carrier layers are stiffer than the functional material. By means of such a design, elastic deformation of the sealing element can be influenced in a targeted manner with regard to the location of the elastic deformation and with regard to an associated direction of deformation. In particular, the sealing element can be configured in such a way that the carrier layers are substantially not elastically deformed and thus the elastic deformation of the sealing element substantially results from an elastic deformation of the functional material. Such a deformation takes place in particular substantially over the entire length and/or the entire width of the functional material. As a result, the sealing element can be easily and reliably introduced into an assigned structural joint. Furthermore, a spring element separate from the functional material can be arranged in the receiving space, which spring element connects the first carrier layer and the second carrier layer. This spring element can be elastically compressed by the first carrier layer and the second carrier layer being brought closer to one another. This results in the same functionality and the same advantages that have already been explained in connection with the elastically flexible functional material. The advantage of using a spring element is that the actual functional material can be selected regardless of its elastic deformability. In addition, a particularly high force can be achieved by means of a spring element, with which force the sealing element is pressed against assigned boundary surfaces of the structural joint in the assembled state.

In a further variant, a stop element for resting on an edge of the structural joint is provided on at least one of the ends of the carrier layers which are further apart in the cross-sectional view. In the cross-sectional view, this stop element preferably projects away from the other carrier layer in each case, i.e. outward from the sealing element. Such a stop element prevents the sealing element from being pushed too far into the structural joint. This results in a precise arrangement of the sealing element within the structural joint.

In addition, a cover element for covering the receiving space can be arranged on at least one of the ends of the carrier layers which are further apart in the cross-sectional view. For this purpose, the cover element can start from one end of one of the carrier layers and extend in the direction of the other carrier layer in each case, i.e. in the direction of the receiving space. Of course, the cover element can also be connected to the ends of both carrier layers. The cover element is then preferably elastically deformable. In all variants, the cover element serves to protect the receiving space and the functional material arranged therein from dirt and/or moisture. The cover element can be attached as a solid body to the at least one carrier layer or can be sprayed in liquid form onto the functional material and the associated ends of the carrier layers. This takes place in particular before the installation of the sealing element, so that it is already provided with the cover element when it is assembled. The spraying can take place during the manufacture of the sealing element or in a construction site environment. Overall, the result is a particularly long-lasting sealing element. This also applies in particular to the assembly process.

In the event that the cover element starts from only one of the carrier layers, it can extend beyond the other carrier layer in each case. The cover element can then also act as a stop element in order to prevent the sealing element from being pushed too far into a structural joint.

The invention is explained below with reference to various embodiments which are shown in the accompanying drawings, in which:

FIG. 1 is a perspective view of a portion of a sealing element according to the invention,

FIG. 2 to 13 show different variants of the sealing element according to the invention in cross-sectional representations, the sealing element being cut along plane A in FIG. 1 ,

FIG. 14 to 24 show further variants of the sealing element according to the invention in cross-sectional representations, the sealing element being cut along plane A in FIG. 1 ,

FIGS. 25 and 26 show additional variants of the sealing element according to the invention in cross-sectional representations, the sealing element being cut along plane A in FIG. 1 , and

FIG. 27 to 29 show sealing elements according to the invention in different installation situations.

FIG. 1 shows a sealing element 10 which is designed to seal a structural joint.

It comprises a first carrier layer 12 and a second carrier layer 14.

The two carrier layers 12, 14 are substantially flat.

In this case, at least one portion of an outer surface 13 of the first carrier layer 12 forms a first contact surface for contact with a boundary surface of the structural joint.

A portion of an outer surface 15 of the second carrier layer 14 forms a second contact surface for contact with a boundary surface of the structural joint.

The first carrier layer 12 and the second carrier layer 14 as a whole extend toward one another in a V shape in a cross-sectional view which is oriented perpendicularly to a longitudinal direction L of the sealing element 10 (cf. plane A). In this cross-sectional view, the two carrier layers 12, 14 are also substantially the same length.

They are connected to one another at the ends thereof that are closer together. This connection 16 is elastically flexible. Starting from the position shown in FIG. 1 , the carrier layers 12, 14 can therefore be elastically deformed in such a way that the two carrier layers 12, 14 are moved toward one another.

A receiving space 18, in which a functional material 20 is received, is formed between the first carrier layer 12 and the second carrier layer 14.

In the following, variants of the sealing element 10 from FIG. 1 are explained with reference to FIG. 2 to 13 .

In this context. FIG. 2 shows an embodiment in which the receiving space 18 is completely filled with a functional material 20.

The functional material 20 thus rests against both the first carrier layer 12 and the second carrier layer 14.

In this case, the functional material 20 is an intumescent material 22.

It is also elastically flexible.

In the embodiment of the sealing element 10 shown in FIG. 3 , the same functional material 20 is used as in the embodiment according to FIG. 2 .

In contrast to this, however, the functional material 20 only partially fills the receiving space 18. The region of the receiving space 18 which is oriented in the direction of the connection 16 is left free.

The embodiment according to FIG. 4 is a variant of the embodiments according to FIGS. 2 and 3 . Again, the same functional material 20 is used, which again only partially fills the receiving space 18.

However, the functional material 20 is now arranged in a portion of the receiving space 18 which faces the connection 16.

Another variant of the sealing element 10 can be seen in FIG. 5 .

In contrast to the embodiment according to FIG. 2 , the functional material 20 is now a thermal insulation material 24. which is also a noise insulation material 26 at the same time.

This is achieved, for example, by the functional material 20 being mineral wool.

The receiving space 18 is again completely filled by the functional material 20.

In contrast to the previously described embodiments, a cover element 28 is now additionally provided which connects the ends of the carrier layers 12, 14 that are further apart from one another and covers the receiving space 18.

The functional material 20 is thus protected against the effects of dirt and moisture.

The cover element 28 can is also elastically deformable, so that it does not stand in the way of the carrier layers 12, 14 moving toward one another.

In the embodiment according to FIG. 6 , the functional material 20 is again the intumescent material 22.

This is now introduced into the receiving space 18 in the form of a strip.

A first strip is applied to the first carrier layer 12.

A second strip of the functional material 20 is arranged on the second carrier layer 14.

The receiving space 18 is not filled between the strips of the functional material 20.

The embodiment from FIG. 7 is a development of the embodiment from FIG. 6 .

In this variant, a further functional material 20 is arranged between the strips made of the intumescent material 22. Two different functional materials 20 are therefore provided in the receiving space 18.

The further functional material 20 can be a thermal insulation material 24, a noise insulation material 26, or a sealing material 30.

The embodiment according to FIG. 8 is based on the embodiment according to FIG. 7 .

A spring element 32 separate from the functional materials 20 is arranged in the receiving space 18 and connects the first carrier layer 12 and the second carrier layer 14.

After they have been moved toward one another in the vertical direction in FIG. 8 , the carrier layers 12, 14 can be elastically returned to their starting position by means of the spring element 32. The spring element 32 thus defines a contact force of the sealing element 10 in its mounted position.

As a result, the sealing element 10 rests particularly reliably against the associated boundary surfaces of the structural joint in the installed state.

The embodiment according to FIG. 9 is also based on the embodiment according to FIG. 7 .

Here, both the first contact surface and the second contact surface are additionally provided with an adhesive coating 34.

As a result, the sealing element 10 can be held particularly reliably in an associated structural joint.

Furthermore, the embodiment from FIG. 10 is based on the embodiment according to FIG. 7 .

In this variant, the end of the first carrier layer 12 which is further away from the second carrier layer 14 is equipped with a stop element 36.

The stop element 36 protrudes from the first carrier layer 12 in a direction pointing away from the second carrier layer 14.

It is designed to be placed against an edge of a structural joint, so that the stop element 36 prevents the sealing element 10 from being pushed too far into the structural joint.

In other words, the sealing element 10 can be precisely positioned in an associated structural joint by means of the stop element 36.

The embodiment according to FIG. 11 is a combination of the embodiments according to FIG. 5 and FIG. 10 .

A cover element 28 is again provided, but in the embodiment according to FIG. 11 it is connected only to one end of the second carrier layer 14.

Proceeding from this, the cover element 28 extends over the receiving space 18 and over one end of the first carrier layer 12. As a result, the receiving space 18 is reliably covered and thus protected from undesirable influences of dirt.

The portion of the cover element 28 protruding beyond the first carrier layer 12 also acts as a stop element 36.

In other words, the sealing element 10 according to FIG. 11 has a combined stop element 36 and cover element 28.

The embodiment according to FIG. 12 is also based on the embodiment according to FIG. 7 .

Three holding elements 38 in the form of holding fingers 40 are provided on each of the outer surfaces 13, 15.

When inserted into an associated structural joint, the holding fingers 40 are slightly deformed so that they hook onto the boundary surfaces of the structural joint.

The embodiment according to FIG. 13 is a variant of the embodiment according to FIG. 6 , which is equipped with holding elements 38 in the form of holding fingers 40.

FIG. 14 to 24 show further embodiments of the sealing element 10.

In these variants, the carrier layers 12, 14 are designed in such a way that only portions 12 a, 14 a thereof extend toward one another in a V shape. Further portions 12 b, 14 b of the first carrier layer 12 and the second carrier layer 14 extend substantially parallel to one another.

The embodiment according to FIG. 14 otherwise corresponds to the embodiment according to FIG. 2 . The receiving space 18, which is slightly enlarged due to the mutually parallel portions 12 b, 14 b of the carrier layers 12, 14, is again completely filled by an intumescent material 22.

Except for the differences in the design of the carrier layers 12, 14, the embodiment according to FIG. 15 corresponds to the embodiment according to FIG. 6 , the intumescent material 22 again being strip-shaped.

In the embodiment according to FIG. 15 , the intumescent material 22 is arranged only on the portions 12 b, 14 b of the carrier layers 12, 14 that extend parallel to one another.

The embodiment according to FIG. 16 substantially corresponds to the embodiment according to FIG. 5 .

The embodiment according to FIG. 17 represents a further development of the embodiment according to FIG. 15 , in which an adhesive coating 34 is provided in each of the parallel portions 12 b, 14 b of the carrier layers 12, 14.

The embodiment according to FIG. 18 is also a development of the embodiment according to FIG. 15 .

A further functional material 20, which can be a thermal insulation material 24, a noise insulation material 26 or a sealing material 30, is now arranged in the portions of the receiving space 18 which are not occupied by the intumescent material 22.

The variant according to FIG. 19 combines the embodiments according to FIGS. 17 and 18 .

In contrast to the embodiment according to FIG. 18 , adhesive coatings 34 are again provided.

The embodiment according to FIG. 20 is based on the embodiment according to FIG. 17 , a spring element 32 now being provided which is separate from the functional material 20 and connects the portions 12 b, 14 b of the carrier layers 12, 14 that extend parallel to one another.

The embodiment according to FIG. 21 differs from the variant from FIG. 20 in that an additional functional material 20 is arranged in the remaining portions of the receiving space 18.

The embodiment from FIG. 22 is a development of the embodiment from FIG. 17 .

A stop element 36 is now arranged at each of the ends of the carrier layers 12, 14 that are further apart from one another.

The stop elements 36 each protrude outward from the sealing element 10.

The function of the stop elements 36 results as already explained in connection with FIG. 10 .

The variant from FIG. 23 differs from the variant from FIG. 22 only in that an additional functional material 20 is arranged in the remaining portions of the receiving space 18.

The embodiment from FIG. 24 is a variant of the embodiment from FIG. 11 .

The difference between these two embodiments is that in the variant from FIG. 24 , the carrier layers 12, 14 have portions 12 b, 14 b extending parallel to one another. With regard to the combined cover element 28 and stop element 36. reference can be made to the statements relating to FIG. 11 .

The sealing elements 10 explained above with reference to FIG. 2 to 24 each differ in one or more features. It goes without saying that the individual embodiments each relate to exemplary combinations of features. It is therefore easily conceivable to combine features of individual embodiments in a different way than is shown in the drawings.

FIGS. 25 and 26 show two additional embodiments of the sealing element 10, the carrier layers 12, 14 again as a whole extending toward one another in a V shape. In the following, only the differences compared to the embodiments already explained, in particular the embodiment according to FIG. 10 , will be discussed.

In the variant according to FIG. 25 , the carrier layers 12, 14 are substantially flat. In contrast to the previous embodiments, however, the cross section of the connection 16 is not pointed, but rather blunt. For this purpose, the connection 16 is formed by a connecting element connecting the carrier layers 12, 14.

The variant according to FIG. 26 is a modification of the variant from FIG. 25 in which the carrier layer 14 is slightly curved. In the cross-sectional view shown in FIG. 26 , the carrier layer 14 is thus arcuate.

Otherwise, reference is made to the embodiments already explained.

In particular, the sealing elements 10 according to FIGS. 25 and 26 can be equipped with any functional material 20 or any combination of functional materials 20.

FIG. 27 to 29 relate to different installation situations for sealing elements 10. In this case, one or more sealing elements 10 is/are arranged in all variants in a structural joint 42 which is defined by assigned boundary surfaces 42 a, 42 b.

In the variant according to FIG. 27 , the structural joint 42 is a joint between two wall portions 44, 46. The structural joint 42 extends vertically in this case.

The structural joint 42 is sealed on both sides by a sealing element 10, which is designed in accordance with the embodiment from FIG. 23 .

It becomes clear here that the stop elements 36 each rest on an edge of the structural joint 42, so that the sealing elements 10 cannot be pushed further into the interior of the structural joint 42 than is shown in FIG. 27 .

The installation situation from FIG. 28 relates to a structural joint 42 between a wall portion 48 and a ceiling portion 50. Such structural joints 42 are also referred to as head-of-wall joints.

This structural joint 42 is closed only on one side by means of a sealing element 10.

This is a sealing element 10 which, with regard to the combined cover element 28 and stop element 36, corresponds to the embodiment from FIG. 11 .

In contrast to this embodiment, however, the functional material 20 provided in the receiving space 18 is an intumescent material 22 that is arranged in strips on the two carrier layers 12, 14.

The fact that in this sealing element 10 a stop element 36 is provided only on one side makes it ideal for use on a structural joint that is delimited at least on one side by a ceiling portion 50.

An additional stop element 36 provided on the other side of the sealing element 10 would only interfere with the installation of the sealing element 10.

The installation situation shown in FIG. 29 also relates to the structural joint 42, which is formed between the wall portion 48 and the ceiling portion 50.

However, the structural joint 42 is now sealed on both sides by means of a sealing element 10. The sealing element 10 corresponds to the variant from FIG. 10 .

Again, the stop elements 36 each rest on an edge of the structural joint 42, so that the sealing elements 10 cannot be pushed further into the interior of the structural joint 42 than is shown in FIG. 29 .

The installation situations from FIGS. 28 and 29 can also be in a form rotated by 180°, the ceiling portion 50 then being a floor portion. In this case, reference is made to bottom-of-wall joints. 

1: A sealing element for a structural joint, comprising: a first carrier layer, and a second carrier layer, wherein the first carrier layer and the second carrier layer, in a cross-sectional view oriented perpendicularly to a longitudinal direction of the sealing element, are substantially the same length and at least one portion of the first carrier layer and at least one portion of the second carrier layer extend toward one another in a V shape, wherein a receiving space is formed between the first carrier layer and the second carrier layer and a functional material is received in the receiving space. 2: The sealing element according to claim 1, wherein the at least one portion of the first carrier layer and the at least one portion of the second carrier layer are connected to one another at ends thereof which are closer together. 3: The sealing element according to claim 1, wherein a further portion of the first carrier layer and a further portion of the second carrier layer extend substantially parallel to one another. 4: The sealing element according to claim 1, wherein the first carrier layer and the second carrier layer as a whole extend toward one another in a V shape. 5: The sealing element according to claim 1, wherein at least one portion of an outer surface of the first carrier layer forms a first contact surface for contact with a boundary surface of the structural joint, and/or wherein at least one portion of an outer surface of the second carrier layer forms a second contact surface for contact with the boundary surface of the structural joint. 6: The sealing element according to claim 5, wherein the first contact surface and/or the second contact surface is provided with an adhesive coating. 7: The sealing element according to claim 5, wherein at least one holding element for holding the sealing element in the structural joint is provided on the first contact surface and/or on the second contact surface. 8: The sealing element according to claim 1, wherein the functional material comprises an intumescent material. 9: The sealing element according to claim 1, wherein the functional material comprises a thermal insulation material. 10: The sealing element according to claim 1, wherein the functional material comprises a noise insulation material. 11: The sealing element according to claim 1, wherein the functional material comprises a sealing material. 12: The sealing element according to claim 1, wherein the functional material rests against both the first carrier layer and the second carrier layer, and the functional material is elastically flexible. 13: The sealing element according to claim 1, wherein a spring element separate from the functional material is arranged in the receiving space and connects the first carrier layer and the second carrier layer. 14: The sealing element according to claim 1, wherein a stop element for resting on an edge of the structural joint is provided on at least one of an end of the first carrier layer and an end of the second carrier layer which are further apart in the cross-sectional view. 15: The sealing element according to claim 1, wherein a cover element for covering the receiving space is arranged on at least one of an end of the first carrier layer and an end of the second carrier layer which are further apart in the cross-sectional view. 16: The sealing element according to claim 2, wherein the first carrier layer and the second carrier layer are connected to one another in an elastically flexible manner. 17: The sealing element according to claim 7, wherein the at least one holding element is a holding projection or a holding finger. 